Typewriting machine



Sept. 22, 1936. G. F, HANDLEY 2,055,290

TYPEWRITING MACHINE Filed Ja'n. 13, 1936 2 Sheets-Sheet 1 ATTORNEYS.

G. F. HANDLEY TYPEWRITING MACHINE Sept. 22, 1936.

2.Sheets-Sheet 2 Filed Jan. 13, 1936 mwN/W... A ww Patented Sept. 22, 1936 UNITED STATES PATENT oFF'lcE l 2,055,290 'rxPEwnrriNc MACHINE George F. Handley, Glendale, N. Y., assgnor to The Royal Typewriter Company, Inc., New York, N. Y., a corporation of New York Application January 13, 195s, serial N 58,951

17 Claims.

vide a carriage escapement mechanism which is Figure 3- is a horizontal view partly in section of the escapement mechanism,

Figure 4 is an enlarged vertical section taken 2o through the escapement mechanism, Figure 5 is a detail perspective View of `one end of the universal bar,

Figure 6 is a perspective view of the interponent,

Figures 7, 8 and 9 are enlarged detail plan views showing diierent positions of the interponentV during depression of either the spacing bar or any one of the 4key levers, and

Figure 10 is an enlarged detail section showing one of the universal bar pivots.

Referring to the accompanying drawings, 5 designates an escapement supporting frame of a typewriting machine having a carriage 6 supported thereon in the usual manner. The usual escapement mechanism for the carriage includes a rack 'I which is mounted on the carriage for cooperation with a pinion 8 loosely mounted on a shaft 9 journaled in the :frame 5, and fixed to said shaft ,is the usual escapement wheel I 0. A dog rocker I2 is fulcrumed on pivots I3, I3 to swing about a horizontal axis, and mounted on the rocker above the axis thereof. are pivoted and iixed dogs I4 and I5 respectively which are successively engaged by the teeth of the escapement wheel I0 when the rocker is rocked to feed the l carriage step-by-step in letter space intervals. The rocker I2 is normally held against rearward swinging movement by a spring I6 whereby the pivoted or limber dog I4 is normally held in engagement with the escapement wheel. I0, the fixed dog i5 being normally disposed in front of said wheel.

A spacing bar II is mounted on the front ends of levers I8 (one only being shown) which are ulcrumed as at I9 on a bridge 20`rigldly con-v (ol. 19t-s2) neoted to the side walls of the main frame of the machine, one of said levers terminating in an upwardly extending rock arm 2l. In the 'broad sense, the two levers I8 and the spacing bar II constitute a manually depressible lever. A rearwardly extending spring 22 which is connected at one end-to the arm 2| and at the other end to a stud 23 fixed to the machine frame, serves to yieldably retain the spacing bar I1 and levers I8 against a stop Illa and against depression.

The invention also includes the usual key levers 24 which operate the type bars 25. The type bars l 25 are pivotally mounted as at 2E -on the segment 2l and each type bar is connected to its associated type lever 24 through the medium of the well known front link 28, a vertical link 29 which connects the key lever with the front link, an intermediate lever 30 which is connected by a link 3l to the front link 28, and a link 32 which connects the intermediate lever 30 with the heel of the type bar. yThe usual pendant universal bar A is located in rear and below the escapement wheel I0.. This universal bar includes spaced legs 33, 33 which are pivoted at their upper ends on noise-reducing rubber insulated bearings as at 34, 34 to bracket arms 35, 35 at- ,tached to the main frame 36 of the machine. A plate 3l connects the legs 33, 33 intermediate their ends and a cross bar 38 is supported by the lower ends of the legs below the connecting plate 31. One leg 33 is provided with a laterally extending arm 39. A link 40 is connected at its front endV to the upwardly extending rock arm 2land at its rear end to the laterally extending arm 39. Thus when the spacing bar I'I is depressed, the universal bar A will be moved for- Wardly. `Links 4I are connected at their front ends to the intermediate levers 30 and at their rear ends to the cross bar 3B of the universal bar A. `Consequently upon depression of any key lever 24 the universal bar A will be moved forwardly.

A bracket 42 is attached toth'e frame 5 at one side of the rocker I2 and a power transmitting lever 43 which extends in a general direction away from the rocker and in a plane parallel to the axis I9, is fulcrumed intermediate its ends on said bracket as at 44, 44 to swing about a vertical axis. The power end 45 is disposed in front of and normally in spaced relation to a forwardly extending and adjustable thrust arm 46 which is secured by a screw 4l to a horizontal arm 48 which is integral with the connecting plate 3'I of the universal bar A. Consequently upon forward movement of the universal bar A,

about its vertical axis 44.

either upon depression of any key lever 24 or upon depression of the spacer bar II, the thrust 'arm46 will engageA the power end 4 5` of the transmitting lever 43 and thereby rock the same about its vertical axis. power transmitting lever 43 extends laterally toward the feed rocker I 2 and is disposed in a plane slightly in front of said rocker. An interponent 50 is fulcrumed intermediate its ends as at I on said end 49 of the power .transmitting lever and has bodily movement with the latter. The interponent includes a tail 52 at one end and a nose 53 at the other end. The end of the nose 53 is recessed to form a resultant concentric end 54 and a stop 55. A coil spring 56 is connected at one end to the end 49 of the power transmitting lever 43 and at its other end to the tail 52 of the interponent, and serves the dual function of (1) yieldably retaining the tail 52 against a stop 51 on the end 49 of the lever 43, and (2) yleldably retaining the concentric edge 54 of the nose 53 of the interponent infengagement with the front face of a laterally extending bearing arm 58 xed to the upper portion of the dog rocker I2. Anxed abutment 59 which is preferably an integral part of the bracket 42, is located in spaced relation to and in rear of a laterally extending cam arm 60 xed to the inter- A at substantially right angles to the general plane of the rocker I2. A coil spring 6I has one end connected to the power end 45 of the transmitting lever 43 and its other end connected to the bracket 42 and functions to yieldably retain the transmitting lever against rocking movements The universal `bar pivots 34, 34 are of noisereducing construction for the purpose of quieting any universal bar noise which may tend to develop through the action of the universal bar links 4I against the universal bar rod 38, or quieting any noise which may tend to develop by the -contact between the thrust arm 46 and either the power end 45 of the transmitting lever '43 or the ribbon lifting mechanism (not shown). To this end, a double ilanged bushing 62 with a central hole 63 `is positioned within an opening in the upper end of each arm 33 of the universal bar A, said opening receiving the pivot screw 34*L which is attached to` thebracket arm 35. A steel sleeve 64 having a flange 65 is pushed through the central hole in the rubber bushing until the ange 65 rests against said bushing. A washer or ange 65 is then placed over the outer end of the sleeve 64 and is upset against a shoulder on said sleeve. v

From the foregoing, it will be observed that during the depression stroke of the spacing bar I'I the universal b ar A will be moved forwardly together with the thrust arm 46, the power trans.- mitting lever 43 will be rocked about its vertical axis 44 and against the tension of the spring 6I and the interponent 5I) will be bodily moved rearwardly as shown in Figures 7, 8 and 9. The interponent 50 is normally engaged with the dog rocker I2, as shown in Figure 7, and as the interponent is moved rearwardly the cam arm 60 'of the interponent will contact the fixed abutment 59 and thereby swing said interponent and dis- .engage the same from the dog rocker, as shown in Figures 8 and 9. This rearward movement of the' interponent causes the dog rocker to be The other end 49 of theA rocked to release the escapement thereby-permitting the carriage to be moved one space. The nose 53 of the interponent is abruptly disengaged from the dog rocker and immediately thereafter the power transmitting lever 43 and the interponent return to their normal positions under the influence of the springs 6I and 56 respectively.

Thus it will be observed that before the spacing bar reaches the bottom of its depression stroke, or` before any one of the key levers reaches the bottom end of its depression stroke, the interponent 50 will have been moved bodily rearwardly to swing the dog -rocker I2 to release the escapement and will be subsequently released abruptly from said-dog rocker whereby the carriage will be fed forwardlyone space.

I claim:

1; ,In a typewriting or like machine, the combination with a carriage, of an escapement mechanism therefor including 'a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, and means operated by the universal bar during the depression stroke of any key lever for rock-V' ing the dog rocker against the tension of the spring and for releasing said rocker.

2. In a typewriting or like machine, the `combination with a carriage, of an escapement mechanism therefor including adog rocker and a spring for normally holding the rocker against movement, a. universal bar, type actions including key levers connected to the universal bar, and means operated by the universal bar during the depression stroke of any key 'lever for -rocking the dog rocker against the tension of the spring and for releasing said rocker, said means including a bodily movable and pivotally mounted interponent. normally engaging said rocker and movable todise'ngage said rocker.

3. In a typewriting or like machine, the combination with a carriage, of an escapement mechanism therefor includinga dog rocker and a spring for normally holding the rocker against movement,a universal bar, type actions including .key levers connected to the universal bar, means operated by the universal bar during'the depression stroke of any keylever for rocking the dog rocker against the tension of the spring and for releasing said rocker, said means including a bodily movable and pivotally mounted interponent normally engaging said rocker and movable to disengage said rocker, a spring for normally retaining the interponent in engagement with the rocker, and means disposed in the path of movement of the interponent for swinging the latter out of engagement with'the rocker.

4. In a typewriting or like 'machine, the combinationwith a carriage, of an'escapem'nt mechanism Atherefor including a dog rocker and a -spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar,

and means operated by the universal b ar during the depression stroke of any key lever for rocking the dog rocker against the tension of the spring and for releasing said rocker, said means including a bodily movable and pivotally mounted interponent normally engaging said rocker and movable to disengage said rocker and provided lng key levers connected to the universal bar, 5

and means operated by the universal bar during the depression stroke of any key lever for rocking the dog rocker against the tension of "ther spring and for releasing said rocker, said means including a power transmitting lever mounted to swim about a verticalaxis, andan interponent pivotally mounted on and bodily movable with said transmitting lever and normally engageable with said rocker, said interponent being swingable to disengage said rocker upon movement of lsaid transmitting lever.

6..In a typewriting or like machine, vthe combination with a carriage, of an escapement mechanism therefor includingv a dog rocker and a 'spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, and

means operated by the universal bar during the depression stroke of any key lever vfor rocking the dog rocker against the tension of the spring *and for releasing said rocker, said means including a power transmitting lever mounted to swing about a vertical axis, and an interponent pivotally mounted on and bodily movable with said transmitting lever and normally engageable with said rocker, said interponent being swingable to disengage said rocker upon movement ofA said transmitting lever, a spring for normally retaining th interponent in engagement with the rocker, and means disposed in the path of movement of the interponent for swinging the latter out of engagement with the rocker.

'1. In a typewriting or like machine, the combination with a carriage, of an escapement mechanismV therefor including a dog rocker and a spring for normally holding therocker against movement, a universal bar, type actions including key levers connected to the universal bar, and means operated by theuniversal bar during the depression stroke of any key lever for rocking the dog rockeragainst the tension of the spring and for releasing said rocker, said means including a power transmitting lever mounted to swing about a vertical axis, and an interponent pivotally mounted on `and bodily movable with said transmitting lever and normally engageable with said rocker, said interponent being swingable to disengage said rocker upon movement of said transmitting lever, said interponent being provided with a cam arm, a spring for normally retaining the interponent in engagement with the rocker, and a fixed abutment mounted for cooperation` with the cam arm of the interponent for swinging the latter out of engagement with the rocker during the bodily movements of the interponent. A

8. In a typewritingor like machine, the combination with a carriage'of an escapement mechanism therefor including a dog rocker and a f' spring for normally holding the rocker against bination with a carriage, of an escapement mechanism therefor including a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, a spacing bar connected to the universal bar, and means operated bythe universal bar during the depression stroke of any key lever or during the depression stroke of the spacing bar for rocking the dog rocker against the tension of the spring and for releasing said rocker, said means including a bodily movable and pivotally mounted interponent normally engaging said rocker and movable to disengage said rocker.

11. In a typewriting or like machine, the combination with a carriage, of an escapement mechanism therefor including a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar,

a spacing bar connected to the universal bar, and

means operated by the universal bar during the depression stroke of any key lever or during the depression stroke of the spacing bar for rocking the dog rocker against the tension of the spring and for releasing said rocker, said means including a bodily movable and pivotally mounted interponent normally engaging said rocker and movable to disengage said rocker, a spring for normally retaining the interponent in engagement with the rocker, and means disposed in the path of movement of the interponent for swinging the latter out of engagement with the rocker.

12. In a typewriting or like machine, the combination with a carriage; of an escapement mechanism therefor including a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, a spacing bar connected to the universal bar, and means operated by the universal bar during the depression stroke of any key lever or during the depression stroke of the Aspacing bar for rocking thedog rocker against the tension of the spring and for releasing said rocker, said means including a bodily movable and pivotally mounted interponent normally engaging Said rocker and movable to disengage said rocker and provided with a cam arm, a spring for normally retaining the interponent in'engagement with the rocker, and a fixed abutment mounted for cooperation with the cam arm. of the interponent for swinging the latter out of engagement with the rocker during the bodily movements of the interponent.

, 13. In a typewriting or like machine, the combination with a carriage; of an escapement mechanism therefor including a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, a spacing bar connected to the universal bar, and means operated by the universal bar during the depressionstroke of any key lever or during the `depression stroke of the spacing bar for rocking the dog rocker against the tension of the spring and forlreleasing said rocker, said means including a power transmitting lever mounted to swing about a vertical axis, and an interponent pivotally mounted on and bodily movable with said transmitting lever and normally `engageable with said rocker, said 'interponent being swingable to disengage said rocker upon movement of saidv transmitting lever.

14: In a typewriting or like machine, the combination with a carriage, of an escapement mechanism therefor including a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, a spacing bar connected to the universal bar, and means operated by the universal bar during the depression stroke of any key lever or during the depression stroke of the'spacing bar for rocking the dog rocker against the tension of the spring and for releasing said rocker, said means including a-power transmitting lever mounted to swing about a vertical axis, and an interponent pivotally mounted on and bodily movable with said transmitting lever and normally engageable with said rocker, said interponent being swingable to disengage said rocker upon movement of said transmitting lever, a spring for normally retaining the interponent in engagement with the rocker, and means disposed in the path of movement of the interponent for swinging the latter out of engagementwith the rocker.

15. In a typewriting or like machine, the com- 1 bination with a carriage, of anl escapement mechanism therefor including a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, a spacing bar connected to the universal bar, and means operated by the universal bar during the depression stroke of any key lever or during the depression stroke of the spacing bar for rocking the dog rocker againstthe tension of the spring and for releasing said rocker, saidI means `in cluding a power transmitting lever mounted to swing about a vertical axis, and aninterponent pivotally mounted on and bodily movable with said transmitting lever and normally engageable with said rocker, said interponent being swingable to disengage said rocker upon movement of said transmitting lever, said interponent being provided with a cam arm, a spring for normally retaining the interponent in engagement with the rocker, and a xed abutment mounted for cooperation with the cam arm of the interponent for swinging the latter out of engagement with the rocker during the bodily movements of the interponent.

16. In a typewriting or like machine, the combination with a carriage, of an escapement mechanism therefor including a dog rocker and a spring for normally holding the rocker against movement, a universal bar, type actions including key levers connected to the universal bar, a spacing bar connected tothe universal bar, and means operated by the universal bar during the depression stroke of any key lever or during the depression stroke of the spacing bar for rocking the dog rocker against the tension of the spring and for releasing said rocker, said means including a power transmitting lever fulcriimed on the frame to swing about a vertical axis, an interponent mounted on and bodily movable with the transmitting lever to swing about a vertical axis and normally engaging the dog rocker, said interponent being provided with a cam arm, a spring for normally retaining the interponent 'in engagement with the rocker. and axed abutment mounted on the frame and for cooperation with the cam arm ofthe .interponent for swinging the latter out of engagement with the rocker during the bodily movements of the interponent.

17. In a typewriting orlike machine. the comf bination with a carriage, of an escapement mechanism therefor including a dog rocker andv a spring for normally holding'the rocker against movement, a universal bar, a spacing bar connected to the universal bar, type actions including key levers connected to the universal ban,

and an interponent located intermediate the dog rocker and` the'universal bar for rocking the rocker against the tension of the spring and for releasing said rocker during the depression stroke of they spacing bar or during the depression of any key lever.

I GEORGE F. HANDLEY. 

